Installation Guide

INSTALLATION NOTES

• TS4-F, TS4-R-F, and TS4-A-F are shipped in the OFF position and will

measure 0.6V at the output when the keep-alive signal is not

present.

• Failing to follow the sequence of installation steps may result in TS4

damage not covered under warranty.

• Connect all TS4-R-F or TS4-A-F units to their respective modules

before connecting their outputs in series.

• Install all TS4-F, TS4-R-F, or TS4-A-F units before powering on the RSS

Transmitter.

• Never apply an external voltage source to a module or string

equipped with TS4-F, TS4-R-F, or TS4-A-F units.

• If parallel string connections are needed, rst connect the TS4-F, TS4-R-F,

or TS4-A-F to the PV modules, then connect all TS4-F, TS4-R-F, or TS4-A-F

outputs in series, and nally pass one side (+ or -) of the homeruns

through the PLC transmitter to turn the system ON.

• Place rapid shutdown system label no more than 1m (3ft) from

initiator (AC disconnect) or service panel containing means of

disconnection if not at same location.

Place safety labels in proper location